Promax HF-3 Crankset
Best lightweight upgrade for competitive BMX racers seeking maximum stiffness.
A stiff, lightweight upgrade for riders who demand efficient power transfer. The hollow aluminum construction and oversized spindle provide a responsive feel, while the flexible mounting options allow for easy customization with various chainring setups.
$299.99
More HF options
Who it's for
- Competitive BMX racers looking to shave weight from their setup
- Performance-driven athletes seeking maximum efficiency on the track
- Riders of various heights needing specific crank arm lengths
Who should skip it
- Freestyle or street riders requiring heavy-duty impact resistance
- Casual weekend riders seeking a more affordable entry-level option
- Mechanics or DIYers working with older bottom bracket standards
Performance breakdown
Power Transfer Efficiency
The 30mm spindle provides a rigid, responsive feel under heavy load.
Weight Optimization
Hollow forged construction balances durability against a slightly heavier overall profile.
Drivetrain Versatility
Seamlessly switches between direct-mount and standard chainring setups for varied riding.
Structural Rigidity
CNC-machined aluminum ensures minimal flex during high-torque BMX racing maneuvers.
Installation Flexibility
Standardized mounting options make setup straightforward for most modern BMX frames.
Material Durability
6061-T6 aluminum offers a robust, long-lasting foundation for aggressive daily use.
Key Specs
Material
6061-T6 Aluminum
Weight
1043.26 grams
Crank Arm Length
170 mm
Spindle Diameter
30 mm
Intended Use
BMX
Drivetrain Speed Compatibility
Single speed 3/32"
Bolt Circle Diameter
104 mm
Chainring Mount Type
SRAM 3-bolt direct mount
Crank Construction Type
Hollow, Forged
Bottom Bracket Interface Type
30mm spindle
Know before you buy
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Ask Metto anything about the Promax HF-3 Crankset before you decide.
